Improvement in miter-machines



L. HENKLE.

ImprovementA in Miter-Machines.

N0. 128,486, Y Patented|Ju|y-2,1872.

PATENT GFFICE.

LEONARD HENKLE, OF ROCHESTER, NEV YORK.

IMPROVEMENT IN MITER-MACHlNES.

Specification forming part of Letters Patent No. 128,486, dated July 2,1872; antedatcd J une 11, 1872.

To all whom it may concern:

Be it known that I, LEONARD HENKLE, of the city of Rochester, in thecounty of Monroe and State of N ew York, have invented a new and usefulImprovement in Miter-Gauges; and I do hereby declare that the followingis a full and exact description thereof, reference being had to theaccompanying drawing and to the letters of reference marked thereon.

Figure l represents a perspective view of my miter-gauge. Fig.-2represents a portion of the platform and adjustable table with thelatch. Fig. 3 represents a plan of a modification of the same.

My new miter-gauge, for working in lumber, is constructed so as todetermine the length of the Work and the angles of the bevel to besawed, by means of simple adjustments of its parts, as herein fullydescribed.

The rectangular platform A is provided with two pairs of guide-blocks, BO, two series of adjustable segmental plates, D, the centrallypivotedadjusting-table E; and the latter is furnishedv with an adjustablegauge-block', F, to determine the length of the work, and with stop-latches G and sight blocks H. The guide-blocks B C are fastened to theplatform A in proper proximity to each other to just permit the blade ofa saw to enter the narrow space between them; and each of these blocksis capped with a block,`I, to serve as a stop, limiting the action ofthe saw when its rim or back comes in contact with them. The caps I willbe of the proper thickness to allow the 'edge of the saw to pass throughthe lumber or Work upon the table E before the saw-back comes in contactwith them. The adjustable segmental plates D are provided with openslots 'i into which the pivoted latches G upon the adjusting-table mayenter to hold the table in the different positions to which it may beadjusted.

The segments D are made adjustable by set-screws and slots forthepurpose of allowing them to be so varied in their positions as to causethe table E, when adjusted and fastened in any of the several positionsof which it is capable, to occupy a slightly different angle to the lineof the saw, and thereby the bevels for the miters of frames and otherWork may be so varied as to cause the miter-joints of the frame to beslightly open or free at either the inner or outer sides of theframejoints or corners. By thus forming the miterjoints any tendency ofthe wood to shrink or swell, as the case may be, maybe compensated.

The sight-blocks serve to aid the Workman to quickly determine theproper position or adjustment of the table E for the several angles atwhich the miters may be sawed. The two latches G, against which the edgeor side of the` lumber will be held by the workman, occupy a position atright angles to the inner edge of the gauge-block F, and the latter maybe adjusted upon the table to determine the different lengths ofmoldings or other Work to be sawed.

Depressions t are made in the face of the platform to permit the latchesto enter thel slots i in the outer edge of the segments D.

In Fig. 2, which represents a modification of my invention, thesegmental plate S is attached -to the table E and turns with it, and maybe adjusted to the required positions to bring the table into theseveral relations necessary, and be held by the set-screw V; and as asubstitute for the gauge-block F the block F with its arm o may be used,and it may be reversed in position to accommodate and gauge the lengthof pieces of lumber, longer than the platform and table.

It will be understood that the adjustments of the table E or E upon thecentral pivot will turn the lumber Which rests upon it so as to bring itinto all the necessary positions to saw the bevels for miter-joints withaccuracy, and without any handling except to move it longitudinally uponthe table.

Having fully described my improved mitergauge, I claim, and desire tosecure by Letters Patent, as my invention- The adjustable table E havingthe gaugeblock F and latches G, in combination with platform A andguide-blocks B C, substantially as and for the purpose described.

In witness hereof I have hereunto set my hand this 22d day of August, A.D. 1871.

LEON ARD. HENKLE.

Witnesses n.13. K. Phon, A. O. PARsoNs.

